My 10 month old puppy is very anxious. She hates being left alone and always has to have one of our family in sight. If we're in the car and one of us has to jump out, she will go mad, barking and crying. (She's VERY loud) She is also like this on walks, if one of us lags behind, she will run in between us and try to round us up. Is there anything we can do with her being so anxious?